Injector for oil-engines.



K. EVE-RS.

INJECTOR FOR OIL ENGINES.

APPLICATION FILED SEIT. 9,1914.

itness 5,95:

Patented Nov. 24, 1914.

Im/e ntor: K u r-t Eve r-s b 162/12 figl His tor-neg off?) ther back from the discharge end of the pulverizer, in order that when the loacl on the engine is light, enough oil may reach the combustion chamber with the first. increments of air. Such a construction is shown in Fig. 4c, and it is evident that this graduation of the areas oil-the holes 1% may be adopted when they are raclial as in Fig. l. l l/ henthc fuel pump is not arranged to keep the central chamber 8 full of oil all the time, but only to deliver to said chamber separate charges of oil, stroke by stroke, and each charge is swept completely out of the injector at each opening of the needle valve, the construction hown in Fig. is preferred. Here there is a passage 16 from the air cluct 11 to the central chamber 8, so that each charge of oil deposited in the in jector is exposed to the air pressure in the central chamber 8 as Well as in the mining chamber. The result is that when the needle valve is liftecl, the entire quantity of oil in the injector is blown into the cylinder, ancl a fresh charge of oil is not forced in by the pump until after the neerllc valve closes. In this case, therefore, the fuel pump is timecl to inject the oil alternately with the opening strokes of the needle valve, w ilc in the device shown in Fi l the injection stroke of the pump occurs simultaneously with the opening or the valve.

ln accordance witli the provisions of the patent statutesl haveclescribecl the principle of operation of my invention, together ith the apparatus which 1 now consicier to represent the best embodiment thereof; but I desire to have it understood. that the apparatus shown is only illustrative, anti that the invention can carried out by other means. What ll claim new anrl desire-to secure by Letters Patent of the United States, l-3 1. A fuel injector comprising a feed valve, an annular chamber concentric therewith, means for supplying fuel and. air to saifl chamber, and plurality of circumferential ribs in saiii chamber forming a'tier of annular grooves connected. by. narrow annular passages, the whole constituting $0 ab x'rinth or baliie for subdividing anal in ic ing the "fuel and air flowing over the edges of saicl ribs.

A. fuel injector comprising a receptaole, a plug provided with a central. chain bcr ancl lDSQI'lLB(;l l.I1iZO said receptacle leavii'ig; an annular chai 'ber between them, saicl plug being also provided with a plurality oiiholcs connecting the two chambers, means for supplying compressed air to annular chamber, means for ruppigung ruel to saici central chamber, and. means for giving a labyrinthine course fuel and airiiow ing through sairl annular chamber.

3. A :fuel injector comprising a plug; containing a-central chamber and a plurality of holes tl'irr'iugh the wall of said chamber, cirouinfilierential ribs on the exterior oil portion of saicl plug between said holes, ancl a receptacle receiving said plug and leaving an annular chamber around the ribbed portion.

4:. A. i'uel in'ector coin arising a lu containing a central chamber and a plurality holes through the wall oi said chamber,

circumferential ribs on the exterior of a portion. of said plug receptacle receiving said plug and leaving an. annular chamber around the ribbccl portion, anal a valve for regulating the flow of fuel from sai l annular chamber.

5. A fuel injector comprising a receptacle, plug provided with a central charm her and. inserted 7 en annular cl'iainbcr between them, means for supplying compressed. air to said annular chan'iber, and means for supplying fuel to the cent a1 chamber, said plug haw a plurality of holes connecting sairl two chambers incl inclined in a clirection opposite to the flow of air through the annular chamber. (3. A. iuel tnclc, a plug provicleil with a central. chamber anrl inscr into the receptacle lezwingi; an annular chamber between them, means for supj ing COi'l'11)I('S$( l air to said annw.

lar chamber, antl means for supplying fuel to the censzral. chamber, sairl. plug having a plura r of holes conncctin said two cnan'r i inclin iil m a direction opposite to thro annulr chain-- her holes increasing; in cross-section town. .e ivcijl end oi the in ector.

ill]

cctor comprising a recepiea'ving an anthe means for sairl annular seen... for fuel to 'Blf holes connc ng saicl two chani- 2 ant l {BF-1151M; in size tlron ijone enrl cl:

'0 the whereof, have her-sun lilth (lay of iaugust, l9

Kllll'll EVERS.

i set niarsorur,

between said holes, a

injector comprising a recon-- ntral chamber anti I imbe, said plug having into the receptacle leaving 

